{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["countries of residence", "state or province of headquarters", "spouse"], "input": "Greyhound Canada  is a subsidiary of Scotland's  FirstGroup plc  linked with Dallas-based Greyhound Lines ( also known as Greyhound USA ) ."}
{"countries of residence": [], "state or province of headquarters": [], "spouse": []}